1.   But in response, the White House has changed its numerical Internet address, so the attack has not knocked the Web site off line.

2.   Instead, the terrorist attacks knocked people back on their heels and led to a round of soul-searching about what movies should be made.

3.   That assault was fended off, but the next day a more sophisticated hacker attack knocked the company off the Internet.

4.   The attack knocked the television signal off the air for three hours.

5.   The White House has changed its numerical Internet address, so the attack has not knocked the Web site off line.

6.   So too has speculative buying of futures contracts on concerns that a U.S.-led attack might knock OPEC member Iraq out of the export market.

7.   Tanjug said the attack knocked two private television stations off the air in the region.